RVVP 2x0.75mm² Shielded Signal Cable Braided Copper Low Noise Communication Wire 300/500V

Cable Designation & Meaning

Construction: Two fine-stranded flexible copper conductors, each PVC insulated, laid up with fillers to form a round core assembly, wrapped with copper braid shield (typically 85%–90% coverage), and extruded with a common round PVC outer sheath.

Applicable Standards

• JB/T 8734.5-2016 — Rated voltages up to and including 450/750 V PVC insulated cables and cords for fixed wiring and flexible applications — Part 5: Shielded flexible cables
• GB/T 5023.5-2008 / IEC 60227-5 — Polyvinyl chloride insulated cables — Flexible cables (cords)
• GB/T 3956 / IEC 60228 — Conductors (Class 5 flexible copper)
• GB/T 2951 / IEC 60811 — Insulating and sheathing materials — Common test methods
• GB/T 18380 / IEC 60332-1 — Flame retardant (single cable, passes)
• GB/T 5441 — Communication cable test methods (shielding effectiveness reference)

RVVP 2×0.75 mm² — Miniature Shielded Flexible PVC Control Cable — Specification & Engineering Data

1. Overview & Ratings. RVVP 2×0.75 is a miniature shielded flexible PVC control cable rated 300/500 V, 70 °C continuous. Built per GB/T 9330 / IEC 60227. Two 0.75 mm² very fine-stranded copper conductors (~24×0.20 mm) enclosed in a copper wire braid shield (≥ 80% coverage) and PVC outer sheath. Designed for low-level sensor and signal circuits. Finished OD ≈ 6.0 mm, ≈ 65 kg/km, 100 m coils.

2. Construction Stack (Conductor → Outer).

3. Electrical Characteristics. DC resistance ≤ 24.5 Ω/km at 20 °C (flexible Cu 0.75 mm²); test voltage 2.0 kV AC / 5 min; insulation resistance ≥ 20 MΩ·km. Shield resistance ≤ 20 Ω/km. Nominal ampacity ≈ 7 A (low-power signal). Mutual capacitance ≤ 200 pF/m.

Insulation & Sheath Data

Electrical Parameters

Reference values: 2×0.75 mm² at 5–7 A, single-phase 230 V → max load ≈ 1.15–1.6 kW. Primarily intended for signal and low-current control​ (mA to ~1 A levels), not power distribution.

4. Thermal & Mechanical. 70 °C continuous; 160 °C short-circuit (≤ 5 s); ambient −15~+70 °C. Bend ≥ 6 × OD ≈ 36 mm. The extremely fine stranding gives excellent flexibility for tight routing.

Temperature Characteristics

Fire Performance (RVVP — Standard)

Shielding Performance

5. Installation Practice & Handling. Use micro-connectors and small crimp ferrules. Ground shield at one or both ends. At 65 kg/km, very light — half the weight of RVVP 2×2.5. Indoor use. Low-power signal only.

Mechanical & Installation Parameters

6. Typical Service Applications. Sensor leads, microphone/audio cables, data lines, alarm circuits, micro-control interconnection — anywhere microvolt-level signals must be protected from electromagnetic noise in confined spaces.

7. Testing & QA Regime. Routine: conductor DC resistance, 2.0 kV AC withstand, insulation resistance, shield coverage check, dimensional check. Type: heating test, repeated bending test, flame retardancy, mutual capacitance measurement.

Cable Parameters

Cable Test Parameters

Cable Cross Section Structure

Construction Description

8. Standards & Conformity. GB/T 9330 (plastic insulated control cables); IEC 60227 (international); GB/T 3956 (Class 5 flexible conductors). Rated 300/500 V.

9. Packaging, Storage & Logistics. 100 m per coil, plastic wrapped. Continuous marking: RVVP, 2×0.75, 300/500V, GB/T 9330. Store dry, indoor.

10. Procurement Specification. State "RVVP 2×0.75" + length. Specify shield coverage requirement (≥ 80%). Confirm against factory test certificate.

11. Cable Industry FAQ.

• Q1: What is the difference between RVVP 2×0.75 and RVVP 2×2.5? The 0.75 mm² version is half the cross-section, 25% thinner (6.0 vs 8.0 mm), half the weight (65 vs 130 kg/km), and one-third the ampacity (7 vs 16 A). It is for low-level signals; the 2.5 mm² version is for control circuits carrying more current.
• Q2: Why use 0.75 mm² instead of 2.5 mm²? When the signal current is tiny (sensor outputs, microphone-level audio), 0.75 mm² is sufficient and much lighter, more flexible, and easier to route in tight spaces. The higher resistance (24.5 vs 7.41 Ω/km) is irrelevant for microamp-level signals.
• Q3: What signals can it carry? Low-level sensor signals (4–20 mA loops, thermocouple mV signals), audio interconnection, low-speed data lines, alarm contacts. It is not for power circuits.
• Q4: Can I use RVVP 2×0.75 for 4–20 mA sensors? Yes — 4–20 mA loop currents are well within its capability, and the shield protects the analog signal from industrial noise.
• Q5: Is the shield the same as RVVP 2×2.5? Yes — copper wire braid ≥ 80% coverage. The shield diameter is smaller (5.0 vs 7.0 mm) because it wraps smaller cores.
• Q6: What connectors are used? Micro-connectors, small D-sub, or crimp ferrules. The 1.1 mm conductor diameter requires smaller ferrules than the 2.0 mm conductors in RVVP 2×2.5.
• Q7: What is the bending radius? 6×OD ≈ 36 mm — even more flexible than the 48 mm of the 2×2.5 version.
• Q8: Can it be used outdoors? No — PVC sheath is not UV-resistant. For outdoor use, use outdoor-rated cable.
• Q9: How long can the cable run be? For 4–20 mA loops, typically up to a few hundred meters depending on loop impedance. For high-frequency signals, keep runs short to avoid capacitance effects.
• Q10: What if I need to carry more current? Step up to RVVP 2×2.5 (16 A) or larger. The 0.75 mm² conductor cannot safely carry more than ~7 A.
• Q11: How is this different from unshielded RVV? RVV has no shield — use it when there is no nearby noise source. RVVP 2×0.75 adds the copper braid shield for environments with VFDs, motors, or power cables nearby.